v2trust set and show

add podman image trust set and show

Signed-off-by: baude <bbaude@redhat.com>
Signed-off-by: bbaude <bbaude@DESKTOP-SH5EG3J.localdomain>
Signed-off-by: Brent Baude <bbaude@redhat.com>

5 files changed, 225 insertions, 0 deletions

diff --git a/pkg/domain/entities/engine_image.go b/pkg/domain/entities/engine_image.go
index c46ba815a..d979e6006 100644
--- a/pkg/domain/entities/engine_image.go
+++ b/pkg/domain/entities/engine_image.go
@@ -22,6 +22,8 @@ type ImageEngine interface {
 	Remove(ctx context.Context, images []string, opts ImageRemoveOptions) (*ImageRemoveReport, []error)
 	Save(ctx context.Context, nameOrId string, tags []string, options ImageSaveOptions) error
 	Search(ctx context.Context, term string, opts ImageSearchOptions) ([]ImageSearchReport, error)
+	SetTrust(ctx context.Context, args []string, options SetTrustOptions) error
+	ShowTrust(ctx context.Context, args []string, options ShowTrustOptions) (*ShowTrustReport, error)
 	Shutdown(ctx context.Context)
 	Tag(ctx context.Context, nameOrId string, tags []string, options ImageTagOptions) error
 	Tree(ctx context.Context, nameOrId string, options ImageTreeOptions) (*ImageTreeReport, error)
diff --git a/pkg/domain/entities/images.go b/pkg/domain/entities/images.go
index 74f27e25f..e116a90b9 100644
--- a/pkg/domain/entities/images.go
+++ b/pkg/domain/entities/images.go
@@ -7,6 +7,7 @@ import (
 	"github.com/containers/image/v5/manifest"
 	"github.com/containers/image/v5/types"
 	"github.com/containers/libpod/pkg/inspect"
+	"github.com/containers/libpod/pkg/trust"
 	docker "github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
 	"github.com/opencontainers/go-digest"
@@ -285,3 +286,26 @@ type ImageTreeOptions struct {
 type ImageTreeReport struct {
 	Tree string // TODO: Refactor move presentation work out of server
 }
+
+// ShowTrustOptions are the cli options for showing trust
+type ShowTrustOptions struct {
+	JSON         bool
+	PolicyPath   string
+	Raw          bool
+	RegistryPath string
+}
+
+// ShowTrustReport describes the results of show trust
+type ShowTrustReport struct {
+	Raw                     []byte
+	SystemRegistriesDirPath string
+	JSONOutput              []byte
+	Policies                []*trust.TrustPolicy
+}
+
+// SetTrustOptions describes the CLI options for setting trust
+type SetTrustOptions struct {
+	PolicyPath  string
+	PubKeysFile []string
+	Type        string
+}
diff --git a/pkg/domain/infra/abi/trust.go b/pkg/domain/infra/abi/trust.go
new file mode 100644
index 000000000..5b89c91d9
--- /dev/null
+++ b/pkg/domain/infra/abi/trust.go
@@ -0,0 +1,171 @@
+package abi
+
+import (
+	"context"
+	"encoding/json"
+	"io/ioutil"
+	"os"
+	"strings"
+
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/containers/libpod/pkg/trust"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+func (ir *ImageEngine) ShowTrust(ctx context.Context, args []string, options entities.ShowTrustOptions) (*entities.ShowTrustReport, error) {
+	var (
+		err    error
+		report entities.ShowTrustReport
+	)
+	policyPath := trust.DefaultPolicyPath(ir.Libpod.SystemContext())
+	if len(options.PolicyPath) > 0 {
+		policyPath = options.PolicyPath
+	}
+	report.Raw, err = ioutil.ReadFile(policyPath)
+	if err != nil {
+		return nil, errors.Wrapf(err, "unable to read %s", policyPath)
+	}
+	if options.Raw {
+		return &report, nil
+	}
+	report.SystemRegistriesDirPath = trust.RegistriesDirPath(ir.Libpod.SystemContext())
+	if len(options.RegistryPath) > 0 {
+		report.SystemRegistriesDirPath = options.RegistryPath
+	}
+	policyContentStruct, err := trust.GetPolicy(policyPath)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read trust policies")
+	}
+	report.Policies, err = getPolicyShowOutput(policyContentStruct, report.SystemRegistriesDirPath)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not show trust policies")
+	}
+	return &report, nil
+}
+
+func (ir *ImageEngine) SetTrust(ctx context.Context, args []string, options entities.SetTrustOptions) error {
+	var (
+		policyContentStruct trust.PolicyContent
+		newReposContent     []trust.RepoContent
+	)
+	trustType := options.Type
+	if trustType == "accept" {
+		trustType = "insecureAcceptAnything"
+	}
+
+	pubkeysfile := options.PubKeysFile
+	if len(pubkeysfile) == 0 && trustType == "signedBy" {
+		return errors.Errorf("At least one public key must be defined for type 'signedBy'")
+	}
+
+	policyPath := trust.DefaultPolicyPath(ir.Libpod.SystemContext())
+	if len(options.PolicyPath) > 0 {
+		policyPath = options.PolicyPath
+	}
+	_, err := os.Stat(policyPath)
+	if !os.IsNotExist(err) {
+		policyContent, err := ioutil.ReadFile(policyPath)
+		if err != nil {
+			return errors.Wrapf(err, "unable to read %s", policyPath)
+		}
+		if err := json.Unmarshal(policyContent, &policyContentStruct); err != nil {
+			return errors.Errorf("could not read trust policies")
+		}
+	}
+	if len(pubkeysfile) != 0 {
+		for _, filepath := range pubkeysfile {
+			newReposContent = append(newReposContent, trust.RepoContent{Type: trustType, KeyType: "GPGKeys", KeyPath: filepath})
+		}
+	} else {
+		newReposContent = append(newReposContent, trust.RepoContent{Type: trustType})
+	}
+	if args[0] == "default" {
+		policyContentStruct.Default = newReposContent
+	} else {
+		if len(policyContentStruct.Default) == 0 {
+			return errors.Errorf("Default trust policy must be set.")
+		}
+		registryExists := false
+		for transport, transportval := range policyContentStruct.Transports {
+			_, registryExists = transportval[args[0]]
+			if registryExists {
+				policyContentStruct.Transports[transport][args[0]] = newReposContent
+				break
+			}
+		}
+		if !registryExists {
+			if policyContentStruct.Transports == nil {
+				policyContentStruct.Transports = make(map[string]trust.RepoMap)
+			}
+			if policyContentStruct.Transports["docker"] == nil {
+				policyContentStruct.Transports["docker"] = make(map[string][]trust.RepoContent)
+			}
+			policyContentStruct.Transports["docker"][args[0]] = append(policyContentStruct.Transports["docker"][args[0]], newReposContent...)
+		}
+	}
+
+	data, err := json.MarshalIndent(policyContentStruct, "", "    ")
+	if err != nil {
+		return errors.Wrapf(err, "error setting trust policy")
+	}
+	return ioutil.WriteFile(policyPath, data, 0644)
+}
+
+func getPolicyShowOutput(policyContentStruct trust.PolicyContent, systemRegistriesDirPath string) ([]*trust.TrustPolicy, error) {
+	var output []*trust.TrustPolicy
+
+	registryConfigs, err := trust.LoadAndMergeConfig(systemRegistriesDirPath)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(policyContentStruct.Default) > 0 {
+		defaultPolicyStruct := trust.TrustPolicy{
+			Name:     "* (default)",
+			RepoName: "default",
+			Type:     trustTypeDescription(policyContentStruct.Default[0].Type),
+		}
+		output = append(output, &defaultPolicyStruct)
+	}
+	for _, transval := range policyContentStruct.Transports {
+		for repo, repoval := range transval {
+			tempTrustShowOutput := trust.TrustPolicy{
+				Name:     repo,
+				RepoName: repo,
+				Type:     repoval[0].Type,
+			}
+			// TODO - keyarr is not used and I don't know its intent; commenting out for now for someone to fix later
+			//keyarr := []string{}
+			uids := []string{}
+			for _, repoele := range repoval {
+				if len(repoele.KeyPath) > 0 {
+					//keyarr = append(keyarr, repoele.KeyPath)
+					uids = append(uids, trust.GetGPGIdFromKeyPath(repoele.KeyPath)...)
+				}
+				if len(repoele.KeyData) > 0 {
+					//keyarr = append(keyarr, string(repoele.KeyData))
+					uids = append(uids, trust.GetGPGIdFromKeyData(repoele.KeyData)...)
+				}
+			}
+			tempTrustShowOutput.GPGId = strings.Join(uids, ", ")
+
+			registryNamespace := trust.HaveMatchRegistry(repo, registryConfigs)
+			if registryNamespace != nil {
+				tempTrustShowOutput.SignatureStore = registryNamespace.SigStore
+			}
+			output = append(output, &tempTrustShowOutput)
+		}
+	}
+	return output, nil
+}
+
+var typeDescription = map[string]string{"insecureAcceptAnything": "accept", "signedBy": "signed", "reject": "reject"}
+
+func trustTypeDescription(trustType string) string {
+	trustDescription, exist := typeDescription[trustType]
+	if !exist {
+		logrus.Warnf("invalid trust type %s", trustType)
+	}
+	return trustDescription
+}
diff --git a/pkg/domain/infra/tunnel/trust.go b/pkg/domain/infra/tunnel/trust.go
new file mode 100644
index 000000000..a976bfdc2
--- /dev/null
+++ b/pkg/domain/infra/tunnel/trust.go
@@ -0,0 +1,16 @@
+package tunnel
+
+import (
+	"context"
+	"errors"
+
+	"github.com/containers/libpod/pkg/domain/entities"
+)
+
+func (ir *ImageEngine) ShowTrust(ctx context.Context, args []string, options entities.ShowTrustOptions) (*entities.ShowTrustReport, error) {
+	return nil, errors.New("not implemented")
+}
+
+func (ir *ImageEngine) SetTrust(ctx context.Context, args []string, options entities.SetTrustOptions) error {
+	return errors.New("not implemented")
+}
diff --git a/pkg/trust/config.go b/pkg/trust/config.go
new file mode 100644
index 000000000..0bafc722b
--- /dev/null
+++ b/pkg/trust/config.go
@@ -0,0 +1,12 @@
+package trust
+
+// Trust Policy describes a basic trust policy configuration
+type TrustPolicy struct {
+	Name           string   `json:"name"`
+	RepoName       string   `json:"repo_name,omitempty"`
+	Keys           []string `json:"keys,omitempty"`
+	SignatureStore string   `json:"sigstore"`
+	Transport      string   `json:"transport"`
+	Type           string   `json:"type"`
+	GPGId          string   `json:"gpg_id,omitempty"`
+}